The Block 3 is a cost-effective tool for security teams and first responders to use during fluid, ambiguous, fast-paced encounters. The system allows the user to efficiently interdict a drone approaching a Forward Operating Base, hovering over a large ...

Description 1. Based on previous experience of ordinary hammers, combined with the features of reverse circulation hammer, optimized internal structure and ideal energy transfer, thus ensuring the series of hammers drilling with fast, smooth and ...

... Petroleum With Multi-Layered Mesh Sand-proof sintered filter element is mainly used in petrol exploitation to hold up sand particles and impurities.It can be made according to customers’ request...